LWRC SIX8-A5 Semi-Auto Rifle -The SIX8 A5 with proprietary upper and lower receivers has been fully optimized for the 6.8 SPC II cartridge including an enlarged ejection port allowing unhindered ejection of the 6.8 casings and the first polymer magazine designed specifically for the 6.8 SPC II round. The upper rail section on the SIX8 A5 with special cutback scallop design, allows shooters easy access to the low profile gas block and at the same time keep the full 12" modular rails available on the sides and bottom of the hand guards. This SIX8 A5 brings together the best features of the LWRCI Enhanced and SPR models in one ready to shoot platform. LWRCI Skirmish Back Up Iron SightsAmbidextrous Charging HandleMagpul MOE+ GripLWRCI High Efficiency 4-Prong Flash Hider